Details: This poster shows a red double-decker tour bus. Behind it is the Clock Tower and part of the Palace of Westminster. The bus is red and the rest of the picture is black and white. The bus and background are blurry, conveying the motion of the scene.

The AEC Routemaster is a model of double-decker bus that was introduced by Associated Equipment Company (AEC) in 1954 and produced until 1968. Introduced in 1956, the Routemaster saw continuous service in London until 2005, and currently remains on two heritage routes in central London. The image of the traditional red Routemaster has become one of the famous icons of London, with much tourist paraphernalia continuing to bear Routemaster imagery, and examples still in existence around the world. Despite its iconic status, the previous London bus classes the Routemaster replaced (the RT-type AEC Regent and Leyland Titan RTL and RTW counterparts) are often mistaken for Routemasters by the public and by the media.